For cooking, water content and cooking temperature affected formation
of resistant starch, however, boiling or pressure cooking
induced minor change of resistant starch in cooked rice (Sagum &
Arcot, 2000). Boiling or steaming of starch food causes gelatinization,
and subsequently retrogradation takes place when gelatinized
food is cooled down. During cooling and storage at ambient or low
temperature (i.e., 4 C for 24 h), re-association of amylose and
amylopectin to crystalline structure enhanced resistant starch formation
(Yadav, Sharma, & Yadav, 2010). Therefore, the overall
objective of this study was to investigate impact of QCGBR making
process on product quality and health benefits in terms of GABA
content and resistant starch content. Improvement of the process
by storing cooked GBR at chilling temperature before drying was
subsequently introduced in order to enhance its health benefits.